V2EX least common multiple

Least Common Multiple

Definition / 释义

最小公倍数(LCM):两个或多个整数的共同倍数最小的正整数。常用于分数通分、周期/循环问题、整除与数论计算等。

Pronunciation / 发音

/list kmn mltpl/

Examples / 例句

Find the least common multiple of 6 and 8.
求 6 和 8 的最小公倍数。

To add these fractions, we first compute the least common multiple of the denominators so we can rewrite them with a common denominator.
要把这些分数相加,我们先求分母的最小公倍数,从而把它们改写成同分母的形式。

Etymology / 词源

该短语由三部分构成:least(最小的)+ common(共同的)+ multiple(倍数)。它是数学术语的直译式表达,用来精准描述“在所有共同倍数里最小的那个”。在英语数学教材中是基础算术与初等数论中的常用术语。

Related Words / 相关词汇

Literary Works / 文献与作品中的出现

  • Donald E. Knuth, The Art of Computer Programming(《计算机程序设计艺术》):在整数运算与数论相关内容中会使用/讨论 LCM。
  • Ronald L. Graham, Donald E. Knuth, Oren Patashnik, Concrete Mathematics(《具体数学》):在离散数学与数论例题中常出现“least common multiple”。
  • 多数英语数学教材(如 Elementary Number Theory / Precalculus 等):在“因数与倍数、分数运算、整除性”章节中频繁出现该术语。
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